package net.minecraft.entity.monster;

import java.util.UUID;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityCreature;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.IEntityLivingData;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.ai.EntityAIHurtByTarget;
import net.minecraft.entity.ai.EntityAINearestAttackableTarget;
import net.minecraft.entity.ai.attributes.AttributeModifier;
import net.minecraft.entity.ai.attributes.IAttributeInstance;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.init.Items;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.util.DamageSource;
import net.minecraft.world.DifficultyInstance;
import net.minecraft.world.EnumDifficulty;
import net.minecraft.world.World;

public class EntityPigZombie extends EntityZombie {
	private static final UUID ATTACK_SPEED_BOOST_MODIFIER_UUID = UUID
			.fromString("49455A49-7EC5-45BA-B886-3B90B23A1718");
	private static final AttributeModifier ATTACK_SPEED_BOOST_MODIFIER = (new AttributeModifier(
			ATTACK_SPEED_BOOST_MODIFIER_UUID, "Attacking speed boost", 0.05D, 0)).setSaved(false);

	/** Above zero if this PigZombie is Angry. */
	private int angerLevel;

	/** A random delay until this PigZombie next makes a sound. */
	private int randomSoundDelay;
	private UUID angerTargetUUID;

	public EntityPigZombie(World worldIn) {
		super(worldIn);
		this.isImmuneToFire = true;
	}

	public void setRevengeTarget(EntityLivingBase livingBase) {
		super.setRevengeTarget(livingBase);

		if (livingBase != null) {
			this.angerTargetUUID = livingBase.getUniqueID();
		}
	}

	protected void applyEntityAI() {
		this.targetTasks.addTask(1, new EntityPigZombie.AIHurtByAggressor(this));
		this.targetTasks.addTask(2, new EntityPigZombie.AITargetAggressor(this));
	}

	protected void applyEntityAttributes() {
		super.applyEntityAttributes();
		this.getEntityAttribute(reinforcementChance).setBaseValue(0.0D);
		this.getEntityAttribute(SharedMonsterAttributes.movementSpeed).setBaseValue(0.23000000417232513D);
		this.getEntityAttribute(SharedMonsterAttributes.attackDamage).setBaseValue(5.0D);
	}

	/**
	 * Called to update the entity's position/logic.
	 */
	public void onUpdate() {
		super.onUpdate();
	}

	protected void updateAITasks() {
		IAttributeInstance iattributeinstance = this.getEntityAttribute(SharedMonsterAttributes.movementSpeed);

		if (this.isAngry()) {
			if (!this.isChild() && !iattributeinstance.hasModifier(ATTACK_SPEED_BOOST_MODIFIER)) {
				iattributeinstance.applyModifier(ATTACK_SPEED_BOOST_MODIFIER);
			}

			--this.angerLevel;
		} else if (iattributeinstance.hasModifier(ATTACK_SPEED_BOOST_MODIFIER)) {
			iattributeinstance.removeModifier(ATTACK_SPEED_BOOST_MODIFIER);
		}

		if (this.randomSoundDelay > 0 && --this.randomSoundDelay == 0) {
			this.playSound("mob.zombiepig.zpigangry", this.getSoundVolume() * 2.0F,
					((this.rand.nextFloat() - this.rand.nextFloat()) * 0.2F + 1.0F) * 1.8F);
		}

		if (this.angerLevel > 0 && this.angerTargetUUID != null && this.getAITarget() == null) {
			EntityPlayer entityplayer = this.worldObj.getPlayerEntityByUUID(this.angerTargetUUID);
			this.setRevengeTarget(entityplayer);
			this.attackingPlayer = entityplayer;
			this.recentlyHit = this.getRevengeTimer();
		}

		super.updateAITasks();
	}

	/**
	 * Checks if the entity's current position is a valid location to spawn this
	 * entity.
	 */
	public boolean getCanSpawnHere() {
		return this.worldObj.getDifficulty() != EnumDifficulty.PEACEFUL;
	}

	/**
	 * Checks that the entity is not colliding with any blocks / liquids
	 */
	public boolean isNotColliding() {
		return this.worldObj.checkNoEntityCollision(this.getEntityBoundingBox(), this)
				&& this.worldObj.getCollidingBoundingBoxes(this, this.getEntityBoundingBox()).isEmpty()
				&& !this.worldObj.isAnyLiquid(this.getEntityBoundingBox());
	}

	/**
	 * (abstract) Protected helper method to write subclass entity data to NBT.
	 */
	public void writeEntityToNBT(NBTTagCompound tagCompound) {
		super.writeEntityToNBT(tagCompound);
		tagCompound.setShort("Anger", (short) this.angerLevel);

		if (this.angerTargetUUID != null) {
			tagCompound.setString("HurtBy", this.angerTargetUUID.toString());
		} else {
			tagCompound.setString("HurtBy", "");
		}
	}

	/**
	 * (abstract) Protected helper method to read subclass entity data from NBT.
	 */
	public void readEntityFromNBT(NBTTagCompound tagCompund) {
		super.readEntityFromNBT(tagCompund);
		this.angerLevel = tagCompund.getShort("Anger");
		String s = tagCompund.getString("HurtBy");

		if (s.length() > 0) {
			this.angerTargetUUID = UUID.fromString(s);
			EntityPlayer entityplayer = this.worldObj.getPlayerEntityByUUID(this.angerTargetUUID);
			this.setRevengeTarget(entityplayer);

			if (entityplayer != null) {
				this.attackingPlayer = entityplayer;
				this.recentlyHit = this.getRevengeTimer();
			}
		}
	}

	/**
	 * Called when the entity is attacked.
	 */
	public boolean attackEntityFrom(DamageSource source, float amount) {
		if (this.isEntityInvulnerable(source)) {
			return false;
		} else {
			Entity entity = source.getEntity();

			if (entity instanceof EntityPlayer) {
				this.becomeAngryAt(entity);
			}

			return super.attackEntityFrom(source, amount);
		}
	}

	/**
	 * Causes this PigZombie to become angry at the supplied Entity (which will be a
	 * player).
	 */
	private void becomeAngryAt(Entity p_70835_1_) {
		this.angerLevel = 400 + this.rand.nextInt(400);
		this.randomSoundDelay = this.rand.nextInt(40);

		if (p_70835_1_ instanceof EntityLivingBase) {
			this.setRevengeTarget((EntityLivingBase) p_70835_1_);
		}
	}

	public boolean isAngry() {
		return this.angerLevel > 0;
	}

	/**
	 * Returns the sound this mob makes while it's alive.
	 */
	protected String getLivingSound() {
		return "mob.zombiepig.zpig";
	}

	/**
	 * Returns the sound this mob makes when it is hurt.
	 */
	protected String getHurtSound() {
		return "mob.zombiepig.zpighurt";
	}

	/**
	 * Returns the sound this mob makes on death.
	 */
	protected String getDeathSound() {
		return "mob.zombiepig.zpigdeath";
	}

	/**
	 * Drop 0-2 items of this living's type
	 */
	protected void dropFewItems(boolean p_70628_1_, int p_70628_2_) {
		int i = this.rand.nextInt(2 + p_70628_2_);

		for (int j = 0; j < i; ++j) {
			this.dropItem(Items.rotten_flesh, 1);
		}

		i = this.rand.nextInt(2 + p_70628_2_);

		for (int k = 0; k < i; ++k) {
			this.dropItem(Items.gold_nugget, 1);
		}
	}

	/**
	 * Called when a player interacts with a mob. e.g. gets milk from a cow, gets
	 * into the saddle on a pig.
	 */
	public boolean interact(EntityPlayer player) {
		return false;
	}

	/**
	 * Causes this Entity to drop a random item.
	 */
	protected void addRandomDrop() {
		this.dropItem(Items.gold_ingot, 1);
	}

	/**
	 * Gives armor or weapon for entity based on given DifficultyInstance
	 */
	protected void setEquipmentBasedOnDifficulty(DifficultyInstance difficulty) {
		this.setCurrentItemOrArmor(0, new ItemStack(Items.golden_sword));
	}

	/**
	 * Called only once on an entity when first time spawned, via egg, mob spawner,
	 * natural spawning etc, but not called when entity is reloaded from nbt. Mainly
	 * used for initializing attributes and inventory
	 */
	public IEntityLivingData onInitialSpawn(DifficultyInstance difficulty, IEntityLivingData livingdata) {
		super.onInitialSpawn(difficulty, livingdata);
		this.setVillager(false);
		return livingdata;
	}

	static class AIHurtByAggressor extends EntityAIHurtByTarget {
		public AIHurtByAggressor(EntityPigZombie p_i45828_1_) {
			super(p_i45828_1_, true, new Class[0]);
		}

		protected void setEntityAttackTarget(EntityCreature creatureIn, EntityLivingBase entityLivingBaseIn) {
			super.setEntityAttackTarget(creatureIn, entityLivingBaseIn);

			if (creatureIn instanceof EntityPigZombie) {
				((EntityPigZombie) creatureIn).becomeAngryAt(entityLivingBaseIn);
			}
		}
	}

	static class AITargetAggressor extends EntityAINearestAttackableTarget<EntityPlayer> {
		public AITargetAggressor(EntityPigZombie p_i45829_1_) {
			super(p_i45829_1_, EntityPlayer.class, true);
		}

		public boolean shouldExecute() {
			return ((EntityPigZombie) this.taskOwner).isAngry() && super.shouldExecute();
		}
	}
}
